Adjustable bed



FIG. 1 is a top, front, left side perspective view of an adjustable bed showing our new design, in which the bed board is removed for ease of illustration of the internal structure;

FIG. 2 is a top, rear, right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is an enlarged view of the encircled portion labelled 8 in FIG. 1 ;

FIG. 9 is a top, front, left side perspective view thereof, in which one side of the bed rail is in a collapsed position;

FIG. 10 is a top, front, left side perspective view showing the adjustable bed with the bed board; and,

FIG. 11 is a top, front, left side perspective view showing the adjustable bed with the bed board in a folded state.

The broken lines in the drawings illustrate portions of the adjustable bed which form no part of the claimed design. 

CLAIM The ornamental design for an adjustable bed, as shown and described. 